File Download/upload Time Calculator

How long does it take to download a large image, or .mp3, or .zip file?
This calculator will show the download time for lots of
different bandwidths. You can specify the amount of overhead (i.e., TCP/IP) to be taken into account.
A realistic value for normal internet usage (average file size less
than 25 kiloytse) is 50% overhead.

Specify your settings:

File Size:

Overhead:

%

Your Result

Speed

Time (hh:mm:ss)

9.6 Kbps

14.4 Kbps

28.8 Kbps

33.6 Kbps

56 Kbps

64 Kbps (ISDN)

128 Kbps (ISDN-2)

256 Kbps

512 Kbps

1.024 Mbps

1.544 Mbps (DS1, T1)

2.048 Mbps (E1, ISDN-32)

10 Mbps (10Base-T)

25.6 Mbps (ATM25)

34 Mbps (E3)

45 Mbps (DS3, T3)

51 Mbps (OC1)

100 Mbps (100Base-T)

155 Mbps (OC3)

622 Mbps (OC12)

1 Gbps (1000Base-T)

2.4 Gbps (OC48)

10 Gbps (OC192)

Legend

KByte = Kilobyte
MByte = Megabyte
GByte = Gigabyte

Kbps = Kilobit per second
Mbps = Megabit per second
Gbps = Gigabit per second